Kfir Lavi <lavi.k...@gmail.com> [11-05-08 13:28]: > On Sun, May 8, 2011 at 12:35 PM, <meino.cra...@gmx.de> wrote: > > > Kfir Lavi <lavi.k...@gmail.com> [11-05-08 11:32]: > > > On Sun, May 8, 2011 at 12:00 PM, <meino.cra...@gmx.de> wrote: > > > > > > > Hi, > > > > > > > > may be one can help me... > > > > > > > > I am using a webcam (lsusb: Bus 001 Device 002: ID 1415:2000 Nam Tai > > > > E&E Products Ltd. or OmniVision Technologies, Inc. Sony Playstation > > > > Eye) on my window board to capture videos from the crow, which often > > > > visits me in summer. > > > > > > > > The PS-Eye cam has one (four?) microphones to capture audio and > > > > delivers up to 60 fps. > > > > > > > > The setup was working last summer with video AND audio. > > > > > > > > This summer only video is captured. The resulting video file > > > > seems to contain a "null audio" (no sound samples other than > > > > zeroes...) > > > > > > > > When playing the file with mplayer, this is the output on the terminal > > > > (the video plays ok beside the fact that there is no sound to hear...) > > > > > > > > [aviheader] Video stream found, -vid 0 > > > > [aviheader] Audio stream found, -aid 1 > > > > > > > > Badly interleaved AVI file detected - switching to -ni mode... > > > > AVI: No audio stream found -> no sound. > > > > VIDEO: [MJPG] 640x480 24bpp 60.094 fps 29695.7 kbps (3625.0 > > > > kbyte/s) > > > > Clip info: > > > > Title: > > > > Software: guvcview-1.4.5 > > > > Comments: Sun May 8 09:51:35 2011 > > > > > > > > > > ========================================================================== > > > > Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family > > > > Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG) > > > > > > > > > > ========================================================================== > > > > > > > > > > ========================================================================== > > > > Opening audio decoder: [pcm] Uncompressed PCM audio decoder > > > > AUDIO: 44100 Hz, 1 ch, s16le, 705.6 kbit/100.00% (ratio: > > 88200->88200) > > > > Selected audio codec: [pcm] afm: pcm (Uncompressed PCM) > > > > > > > > > > ========================================================================== > > > > AO: [alsa] 48000Hz 1ch s16le (2 bytes per sample) > > > > Starting playback... > > > > Movie-Aspect is undefined - no prescaling applied. > > > > VO: [gl2] 640x480 => 640x480 Planar 422P > > > > [gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is > > > > ok!) > > > > [gl2] antialiasing off > > > > [gl2] bilinear linear > > > > A: -0.0 V: 1.3 A-V: -1.265 ct: -0.126 77/ 77 14% 88% 0.0% 0 0 > > > > Capturing not enabled (forgot -capture parameter?) > > > > A: -0.0 V: 14.8 A-V:-14.844 ct: -1.486 893/893 10% 89% 0.0% 0 0 > > > > > > > > What can I do/check/test/experiment to get back the audio again....? > > > > > > > > Thank you very much for any help in advance! > > > > > > > > Have a nice sunday! > > > > Best regards > > > > mcc > > > > > > > > > > > > From your output it shows that the sound is not null. > > > Does your sound works playing other files (alsamixer)? > > > Can you record now a picture with the webcam and play it with sound > > after? > > > > > > Kfir > > > > Hi Kfir, > > > > thank you for your reply! :) > > > > sorry, English isn't my mothers tongue... > > > > When playing other videos there is no problem with the sound. > > > > What did you mean with > > > > "Can you record now a picture with the webcam and play it with sound > > after?" > > > > > > mcc > > > > > > You said that this file is a recording of the webcam with sound. > Can you record again from your webcam and then play the file? > Does the file you record is the same compression algorithm as the file that > doesn't work? > > Kfir
The settings (compression algo, audio samplerate and device and such) are stored in a config file which I didnt't touch. Currently, when I record from the webcam I get the effects described above: Video yes, audio no with mplayer output as given above... May /I have to change the settings/ for what reason ever?!? mcc
